added a

Event/PreProcessSearchEvent.php

@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the ONGR package.
+ *
+ * (c) NFQ Technologies UAB <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace ONGR\FilterManagerBundle\Event;
+
+use ONGR\ElasticsearchDSL\Search;
+use ONGR\FilterManagerBundle\Filter\FilterInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+class PreProcessSearchEvent extends Event
+{
+    /**
+     * @var FilterInterface
+     */
+    private $filter;
+
+    /**
+     * @var Search
+     */
+    private $relatedSearch;
+
+    /**
+     * Constructor
+     *
+     * @param FilterInterface $filter
+     * @param Search $relatedSearch
+     */
+    public function __construct(FilterInterface $filter, Search $relatedSearch)
+    {
+        $this->filter = $filter;
+        $this->relatedSearch = $relatedSearch;
+    }
+
+    /**
+     * @return FilterInterface
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * @return Search
+     */
+    public function getRelatedSearch()
+    {
+        return $this->relatedSearch;
+    }
+}

ONGRFilterManagerEvents.php

@@ -25,4 +25,10 @@ final class ONGRFilterManagerEvents
      * The SEARCH_RESPONSE event occurs after search is executed
      */
     const SEARCH_RESPONSE = 'ongr_filter_manager.search_response';
+
+    /**
+     * The PRE_PROCESS_SEARCH event occurs before the preProcessSearch method of
+     * the filter is called
+     */
+    const PRE_PROCESS_SEARCH = 'ongr_filter_manager.pre_process_search';
 }